Reference : Nonexponential decay of Bose-Einstein condensates: a numerical study based on the com...
Scientific congresses and symposiums : Paper published in a journal
Physical, chemical, mathematical & earth Sciences : Physics
Engineering, computing & technology : Electrical & electronics engineering
http://hdl.handle.net/2268/75083
Nonexponential decay of Bose-Einstein condensates: a numerical study based on the complex scaling method
English
Schlagheck, Peter mailto [Université de Liège - ULg > Département de physique > Physique quantique statistique >]
Wimberger, S. [> > > >]
2007
Applied Physics B : Lasers & Optics
Springer Science & Business Media B.V.
86
3
385-390
Yes (verified by ORBi)
International
0946-2171
1432-0649
New York
NY
[en] We study the decay dynamics of an interacting Bose-Einstein condensate in the presence of a metastable trapping potential from which the condensate can escape via tunneling through finite barriers. The time-dependent decay process is reproduced by means of the instantaneous decay rates of the condensate at a given population of the quasi-bound state, which are calculated with the method of complex scaling. Both for the case of a double-barrier potential as well as for the case of a tilted periodic potential, we find pronounced deviations from a monoexponential decay behavior, which would generally be expected in the absence of the atom-atom interaction.
http://hdl.handle.net/2268/75083
10.1007/s00340-006-2511-8

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